Limestone Mining in the Philippines: Overview, Regulations, and Environmental Impact
# 1. Overview of Limestone Mining in the Philippines
Limestone is a key raw material used in cement production, construction, agriculture (soil conditioning), and industrial applications. The Philippines has significant limestone deposits, primarily found in:
– Cebu (major source for cement companies)
– Bohol
– Rizal
– Bulacan
– Negros Occidental
– Palawan
Major mining companies involved in limestone extraction include:
– Republic Cement (owned by CRH and Aboitiz Group)
– CEMEX Philippines
– Eagle Cement Corporation
– Holcim Philippines (now part of San Miguel Corporation)
# 2. Legal and Regulatory Framework
Limestone mining is regulated under:
– Philippine Mining Act of 1995 (RA 7942) – Governs mineral resources exploration and extraction.
– Environmental Compliance Certificate (ECC) – Required under the Environmental Impact Statement (EIS) System.
– Mining Permits & Agreements:
– *Mineral Production Sharing Agreement (MPSA)* – Most common for large-scale mining.
– *Industrial Sand and Gravel Permit (ISAG)* – For smaller operations.
– *Quarry Permits* – Issued by local government units (LGUs).
# 3. Environmental & Social Concerns
Limestone mining can lead to:
✔️ Deforestation & Habitat Loss – Removal of vegetation affects biodiversity.
✔️ Water Pollution – Runoff from mining can contaminate rivers and groundwater.
✔️ Dust & Air Pollution – Blasting and crushing operations release particulate matter.
✔️ Land Subsidence & Sinkholes – Excessive quarrying destabilizes lan.jpg)
apes.
Some communities oppose mining due to health risks and displacement.
# 4. Sustainable Practices & Rehabilitation
To mitigate impacts, companies implement:
✅ Rehabilitation Plans – Reforestation and land restoration post-mining.
✅ Dust Suppression Systems – Water spraying to reduce airborne particles.
✅ Community Development Programs – Livelihood support for affected residents.
The government mandates progressive rehabilitation under the *Mines and Geosciences Bureau (MGB)*.
# 5. Economic Contribution
Limestone mining supports:
💰 Cement industry (~30 million metric tons annual production).
💰 Employment in rural areas (~10,000